3 Jacks 2 Nines
Any thoughts/ experiences using MDO for siding?
Actually, I had this come up just yesterday. I went to our mill shop guy with some drawings on some tapered columns I need to replace. He immediately said he would use MDO and redwood trim to build them out of. He said if we couldn't get MDO, primed on both sides, he would prime the columns everywhere on the inside.I've used it for tapered porch columns, it worked fine.
For siding? Smartside is kind of similar - an OSB panel with a primed hard facing. It's very resistant to warp and moisture uptake. The shed guy I've built with uses it to cover OSB and ply panels when they are left overnight to keep the dew and light rain off. I've never seen a panel of it warp or soak up water even when the ply it was covering did.
It looks like T1-11, and installs similar too. It's 3/8 instead of 5/8 or 3/4, much lighter, and has a hard facing that's primed. I think it's superior to T1-11 in most every way.